feat(): Introducing support for DataHub Events Source

[jjoyce0510]

As of v0.3.7 of DataHub Cloud, connecting DataHub actions is supported.

Summary

• Add new DataHubEventsSource for reading events from DataHub Cloud versions > v0.3.7.
• Add unit tests
• Add documentation

QA & Validation

Verified that the integration is working correctly with longtailcompanions.acryl.io:

Hello world! Received event:
{
    "event_type": "EntityChangeEvent_v1",
    "event": {
        "entityType": "assertion",
        "entityUrn": "urn:li:assertion:aed3ec48-5dbb-40d5-8942-e44a2ff3fa78",
        "category": "RUN",
        "operation": "COMPLETED",
        "auditStamp": {
            "time": 1737418020285,
            "actor": "urn:li:corpuser:__datahub_system"
        },
        "version": 0,
        "parameters": {
            "asserteeUrn": "urn:li:dataset:(urn:li:dataPlatform:snowflake,test_db.public.purchase_event,PROD)",
            "runId": "urn:li:assertion:aed3ec48-5dbb-40d5-8942-e44a2ff3fa78-1737418020282",
            "runResult": "COMPLETE",
            "assertionResult": "SUCCESS"
        }
    },
    "meta": {
        "batch_id": 1,
        "msg_id": 2
    }
}

[github-actions]

Unit Test Results (build & test)

0 tests   - 63   0 ✅  - 63   0s ⏱️ -4s
0 suites  -  1   0 💤 ± 0 
0 files    -  1   0 ❌ ± 0 

Results for commit 355d523. ± Comparison against base commit c0fc442.